baustin wrote:I took mine in today to get the warranty replacement started. Initially, they told me it would take about two hours. When I got there, all they said they needed was to plug in the Consult Tool and get a battery status printout of only 8 bars showing. They're supposed to call tomorrow, after it's ordered, to tell me when the replacement battery will arrive.

Replacement traction battery arrived on October 19th and installed this morning. I took this reading just before I left the dealership.

I took my car into the dealer for its appointment this morning and the battery check came back all five stars of course with 4 capacity bars missing.

Then the service writer came back and said the odometer had been rolled back and the car really had 60,129 miles on it despite the odometer showing 37,500! Yikes!

The Carfax report and Nissan's database show the last service visit in July of 2017 with ~37,000 miles on the odometer and as it's technically impossible to drive a Nissan Leaf 25,000 miles in ten weeks I asked if the OBD tool was ever wrong. They confirmed that it's sometimes incorrect. LeafSpy, Carfax, and the Nissan service database all align with the visible odometer so the dealer is going to call Nissan on Monday and see what's up.

Apparently this dealer has had at least two other (non-Leaf) Nissans erroneously show a dramatically higher odometer readings on the tech tool as opposed to the dash reading so I'll wait until Monday's results from Nissan corporate before freaking out and confronting the selling dealer and Carfax.

The dealer says that if Nissan corporate goes by the dash odometer reading then they'll order a replacement battery for the car on Monday and it'll arrive "in four to six weeks" which seems to be the standard response. The service writer did say that they've been arriving faster than that, however. Fingers crossed for Monday.

achewt wrote:I have definitely seen a trend of Ahr/SOH swinging fairly consistently with ambient temperature since I started tracking data in November 2015. I first posted about it in my regular 6 month cost update Nov 2016 http://kootenayevfamily.ca/cost-update- ... 2-5-years/ (scroll down to the header on LeafSpy). The pattern continued through last winter, noted at http://kootenayevfamily.ca/cost-update- ... 117000-km/ in May of this year. I saw the trend continue into the summer - in June 2017 my Ahr reached 55.89 and 85% SOH again (same as from the previous August, after going to a high of 93%.

I finally lost my first bar after being below 85% for a few months on August 31, 2017. Stats as follows:Ahr=54.50, SOH=83%, Hx=79.72%, odo=127,413km, 53 QCs(I haven't posted the L1/L2s, because I often use the charge timer, which inflates this value substantially, counts once when you plug in, another when it starts charging)

I'm now 4,000 km further along here into October, and my stats are now back to (as of Oct 10):Ahr=55.68, SOH=85%, Hx=82.63%, odo=131,562kmThe lost bar hasn't re-appeared... but I'll be curious to see if it does!

We had a nice hot summer from June through first two weeks of September (+30C most days), then high 20C throughout September, and only recently has it cooled down and become rainy. Start here -> http://climate.weather.gc.ca/climate_da ... 7&Month=6#, and click on the next month button to flip through and get an idea of the temps the car sits in all day long in a baking asphalt parking lot. At night, it is in a carport that is built into north-facing hillside, so it does get a chance to cool down usually to 5 or 6 bars, but each day was up to 7. Now with the cool weather in October, starting each day with 4 bars, and after charging for a few hours just before I leave work, it is back up to 5 bars.

TLDR; - in my experience, you can only trend your own personal LeafSpy data year-over-year with roughly similar climate conditions. So I'll carry on and expect to see 87-88% SOH by November, where it will plateau for a few months, then drop right back down in the spring and reach a low by the end of summer 2018. I'm going to take a stab at 80% (assuming I continue with similar commute).

Thank you for posting as well as the detail you've put into data collection.

My climate is remarkably similar to yours based on temperatures, with yours being a little warmer in summer and cooler in spring/fall. Winters appear approximately the same. Thanks to wunderground.com for helping me translate metric units to freedom units for comparison My annual distance driven is also similar.

While I don't anticipate making it to 70,000+ miles before losing my first bar, your year-over-year data suggests that my first bar may last well into next summer. After a wild spring, my data has settled into an Hx and SOH around 89 as well as AHrs in the 57.5 to 59 range. Winter temperatures should pump up my readings significantly, although I'm sure I'll never approach the middle 60s in AHrs again.

I still maintain based on this data swing based on ambient/battery temperatures that it would be difficult to evaluate a Leaf's battery condition in winter - below 40 degrees F - based on juiced readings. This would make it hard to buy a used Leaf and know battery condition from November-April north of the 37th parallel outside of the Pacific Northwest.

Achewt, I wouldn't be surprised at all to see you regain your lost bar briefly when your ambient temperatures maintain around 0C and a battery temperature of not more than 15C.

2013 SL with Premium package - build date 5/13. 12 bar car with 53,000 miles and counting... Trying to nurse 12 bars to 60,000 miles and beyond if possible!

achewt wrote:I have definitely seen a trend of Ahr/SOH swinging fairly consistently with ambient temperature since I started tracking data in November 2015. I first posted about it in my regular 6 month cost update Nov 2016 http://kootenayevfamily.ca/cost-update- ... 2-5-years/ (scroll down to the header on LeafSpy). The pattern continued through last winter, noted at http://kootenayevfamily.ca/cost-update- ... 117000-km/ in May of this year. I saw the trend continue into the summer - in June 2017 my Ahr reached 55.89 and 85% SOH again (same as from the previous August, after going to a high of 93%.

I finally lost my first bar after being below 85% for a few months on August 31, 2017. Stats as follows:Ahr=54.50, SOH=83%, Hx=79.72%, odo=127,413km, 53 QCs(I haven't posted the L1/L2s, because I often use the charge timer, which inflates this value substantially, counts once when you plug in, another when it starts charging)

I'm now 4,000 km further along here into October, and my stats are now back to (as of Oct 10):Ahr=55.68, SOH=85%, Hx=82.63%, odo=131,562kmThe lost bar hasn't re-appeared... but I'll be curious to see if it does!

We had a nice hot summer from June through first two weeks of September (+30C most days), then high 20C throughout September, and only recently has it cooled down and become rainy. Start here -> http://climate.weather.gc.ca/climate_da ... 7&Month=6#, and click on the next month button to flip through and get an idea of the temps the car sits in all day long in a baking asphalt parking lot. At night, it is in a carport that is built into north-facing hillside, so it does get a chance to cool down usually to 5 or 6 bars, but each day was up to 7. Now with the cool weather in October, starting each day with 4 bars, and after charging for a few hours just before I leave work, it is back up to 5 bars.

TLDR; - in my experience, you can only trend your own personal LeafSpy data year-over-year with roughly similar climate conditions. So I'll carry on and expect to see 87-88% SOH by November, where it will plateau for a few months, then drop right back down in the spring and reach a low by the end of summer 2018. I'm going to take a stab at 80% (assuming I continue with similar commute).

Thank you for posting as well as the detail you've put into data collection.

My climate is remarkably similar to yours based on temperatures, with yours being a little warmer in summer and cooler in spring/fall. Winters appear approximately the same. Thanks to wunderground.com for helping me translate metric units to freedom units for comparison My annual distance driven is also similar.

While I don't anticipate making it to 70,000+ miles before losing my first bar, your year-over-year data suggests that my first bar may last well into next summer. After a wild spring, my data has settled into an Hx and SOH around 89 as well as AHrs in the 57.5 to 59 range. Winter temperatures should pump up my readings significantly, although I'm sure I'll never approach the middle 60s in AHrs again.

I still maintain based on this data swing based on ambient/battery temperatures that it would be difficult to evaluate a Leaf's battery condition in winter - below 40 degrees F - based on juiced readings. This would make it hard to buy a used Leaf and know battery condition from November-April north of the 37th parallel outside of the Pacific Northwest.

Achewt, I wouldn't be surprised at all to see you regain your lost bar briefly when your ambient temperatures maintain around 0C and a battery temperature of not more than 15C.

You're welcome! I agree with you on your assessment WRT evaluating potential used vehicles. Cheers.

All your posts really did help. I came to the feeling that it's not that bad and it is what it is. I had already started just "driving" it like a car and not worrying about stuff.

Well yesterday I Level 2 charged it to 100%. I hadn't really fully charged the thing in about 4 months and I figured it'd be good to re-balance the battery pack. Today I hooked up LeafSpy to see if the numbers changed drastically because of the 100% charge/re-balance and I got these numbers (my first post's numbers are included first):

webb14leafs wrote:I don't see why you think you will be down to 9 bars in late 2018. If your car is currently 4 years old, that means you're losing roughly 4% capacity per year. In 18 months you should still have 11 bars at that rate.

I just lost my first bar last week. 2014 (late 2013 build date) S with 22,000 miles and only 6 QCs. 84% SOH. It had 87% SOH when I bought it in April. I live in south Florida and the summers are long and brutal. Hopefully my degradation rate holds to about 5-6% per year. I drive 40 miles per day and also have free Level 2 charging at work, so I really only need about 30 miles of range.

This is why I had a feeling that I'll be down to 9 bars shortly after my warranty ends. Just 3 weeks later and only 182 miles later, I've lost 0.29 AHr and 1% SOH. Sorry to ask again but is this normal?

leafdriving wrote:This is why I had a feeling that I'll be down to 9 bars shortly after my warranty ends. Just 3 weeks later and only 182 miles later, I've lost 0.29 AHr and 1% SOH. Sorry to ask again but is this normal?

Hi,Losing the 12th bar (~55Ahr) and 11th bar (~51Ahr) will happen quickly, at least that's how I've experienced it with both our 2011 Leafs. Then, it takes a long time to lose the 10th and 9th bars. Our 2 Leafs were driven on different commute ranges and experienced different charging profiles throughout the a typical week.

We've since gotten new replacement batteries in our 2011 Leafs. Based on our past 5 - 6 year experiences, I would say the one thing that definitely helps with battery health is: Drive it within the hour of a full charge. My wife's car receives 2 full charges per day and her battery was never worse off than mine.

The next thing we shall avoid this time around, is depleting the battery down low, say to 2 bars. We'll try our best to use the vehicle down to 4 bars (lowest) before the next charge up.

For my car (lets call it the Silver Leaf): I would charge mine (to 80%) but barely use the vehicle some days of the week. The car will just be sitting there mostly @ 80% charge. I am trying to avoid this now the best that I can with my new battery, but it's difficult to time it right....

The climate in the SF Bay Area doesn't do much harm to the batteries. We park/charge both our vehicles outside the garage for the last 5 - 6 years. Lots of QC'ing doesn't do much harm either.

leafdriving wrote:All your posts really did help. I came to the feeling that it's not that bad and it is what it is. I had already started just "driving" it like a car and not worrying about stuff.

Well yesterday I Level 2 charged it to 100%. I hadn't really fully charged the thing in about 4 months and I figured it'd be good to re-balance the battery pack. Today I hooked up LeafSpy to see if the numbers changed drastically because of the 100% charge/re-balance and I got these numbers (my first post's numbers are included first):

webb14leafs wrote:I don't see why you think you will be down to 9 bars in late 2018. If your car is currently 4 years old, that means you're losing roughly 4% capacity per year. In 18 months you should still have 11 bars at that rate.

I just lost my first bar last week. 2014 (late 2013 build date) S with 22,000 miles and only 6 QCs. 84% SOH. It had 87% SOH when I bought it in April. I live in south Florida and the summers are long and brutal. Hopefully my degradation rate holds to about 5-6% per year. I drive 40 miles per day and also have free Level 2 charging at work, so I really only need about 30 miles of range.

This is why I had a feeling that I'll be down to 9 bars shortly after my warranty ends. Just 3 weeks later and only 182 miles later, I've lost 0.29 AHr and 1% SOH. Sorry to ask again but is this normal?